LULU-272 [Uncensored Leaked] I was trying to tease my older sister, who is a chuunibyou with a long tongue and insists that she's a succubus, so I offered her my dick, but she gave me a strong blowjob and licked and sucked my semen, swallowing it all deep in her throat. Sato Nono

My parents were away on a trip, so I had some free time and sneaked a peek into my sister's room. I saw my sister, dressed as a succubus, uttering mysterious words in front of the mirror: "Evil spirits, pledge your allegiance to me...! Shadow Mortis!" I called out to her normally, but she responded, "How rude! I've taken over your sister! I'm, um, Princess Eila of Succubus!" My chuunibyou sister had completely transformed into a succubus. I teasingly offered my erect penis to her, and she brazenly licked it, saying, "Your vital energy is my energy! I'll suck it all off!" For three days while my parents were away, my sister, fully transformed into a succubus, sucked and swallowed my cum countless times.